Science PT - 2 definitions

Physical Change

A physical change is a change that affects one or more physical properties of a substance. For example, cutting of paper. New products are not

Alkalosis

If the blood pH rises above 7.45, it is too basic or alkaline. This condition is called alkalosis.

Soil Acidification

Soil acidification is a process where the soil pH decreases over time.

Antacids

Antacids are medicines that neutralize the acid in your stomach to relieve indigestion and heartburn. For example, Milk of magnesia.

Strong base

In water, all the particles of a strong base break apart to form OH- ions. For example, Sodium hydroxide (NaOH).

Weak base

In weak base, only some particles will break apart in water to form OH- ions. For example, Ammonia.

Neutralization

Neutralization is a reaction between acid and base to produce salt and water. Acid+ Base ——————> Salt + water.

Chemical change

A chemical change occurs when one or more substances change into an entirely new substances with new properties. For example, rotting of fruits. New products are formed

Salt

A salt is an ionic compound that forms from the negative ion and the positive ion of the base